View and work with HEIF/.heic files in Photoshop on Windows by downloading and installing HEIF and HEVC codecs from the Microsoft Store
When opening HEIF/.heic files into Photoshop you may see one of the following messages:
Note: Canon HIF / HEIC Files are not supported. Use raw files from Canon cameras for best results.
To successfully import HEIF/.heic files, download and install both of the HEIF and HEVC Extensions directly from Microsoft.
Restart Photoshop and try importing your HEIF/.heic file.